A plaque I'd like to make

 From:  glidergider (DAVIDCOUSINS)
In the jpg picture, I created a plaque, but I don't want each individual item to be scaled. I'd like to scale the entire array at once. I tried to extrude the 3dm file which is attached. I want to extrude and shrink the set of words and graphics as a unit. I've started the moi file, but I can't get the item to extrude on two rails. Can this be done?